Email is backing up in the Exchange Submission Queue and the following errors are displayed in Queue Viewer:

432 4.3.2 STOREDRV.Deliver; mailbox database thread limit exceeded”

mail flow is stopped and added below values still same issue.

any suggestion….

<add key=”MailboxDeliveryThrottlingEnabled” value=”False” />
<add key=”RecipientThreadLimit” value=”2″ />
<add key=”MaxMailboxDeliveryPerMdbConnections” value=”3″ />

​Email is backing up in the Exchange Submission Queue and the following errors are displayed in Queue Viewer:432 4.3.2 STOREDRV.Deliver; mailbox database thread limit exceeded”mail flow is stopped and added below values still same issue.any suggestion….<add key=”MailboxDeliveryThrottlingEnabled” value=”False” /><add key=”RecipientThreadLimit” value=”2″ /><add key=”MaxMailboxDeliveryPerMdbConnections” value=”3″ />  Read More

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